Operations & Integration
Flexible operating models and seamless integration into existing IT infrastructures
Back to OverviewOperating Models - Flexible and Future-Proof
All models use the same code base - a later change is possible at any time. Choose the right operating model for your requirements.
| Model | Deployment | Typical Use Case |
|---|---|---|
| SaaS | ISO 27001-certified data center in Germany, operated by UPONU | Quick implementation without own operation |
| Private Cloud | Container cluster (Kubernetes) in customer environment | When data residency or internal policies exclude cloud |
| On-Prem | Same container stack as in-house installation | Air-gapped networks or regulatory requirements |
All models use the same code base - a later change is possible at any time.
Container Architecture
Microservices
Microservices: Workflow Engine, Crypto Service, FileLink Storage, Portal Frontend
Kubernetes Orchestration
Kubernetes orchestration: automatic scaling according to load
Updates
Updates: Rolling update per service (downtime-free)
Monitoring
OpenTelemetry traces, logs and metrics – integrable into existing monitoring stacks
Integration of External Systems
mail:u secure offers seamless integration into existing IT infrastructures.
Via SMTP, Graph API or REST APIs, all common systems can be connected.
| System | Interface |
|---|---|
| Microsoft 365 / Exchange Online | SMTP Connector or Graph API |
| LDAP / Entra ID | User sync & certificate procurement |
| Trust Center | D-TRUST, SwissSign, Sectigo – PKI Automation |
| Archive systems, virus scanners, content filters | SMTP, file system drop or REST API |
| Monitoring & Log Systems | OpenTelemetry export (Traces, Logs, Metrics) |
Step-by-Step Implementation
Implementation Process
The mail:u secure implementation process is designed to be quick and smooth. In just a few steps, you'll have your secure email gateway ready for use.
1.DNS entries & TLS certificates
2.Connector setup in M365 or mail gateway
3.Pilot policy & SECFLOW rollout
4.Configure department-specific rules
5.Optional rollout of Outlook Add-in
6.Activate monitoring dashboard
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